[CI] Update tests to cover the versions supported by the 27.x branch. To save...
- [CI] Update tests to cover the versions supported by the 27.x branch. To save pipeline minutes and better catch problems, cover both min and max supported mariadb/mysql versions, and only opportunistically cover intermediate php versions
(cherry picked from commit 219deca1) From !4925 (merged)
Co-authored-by: Benoit Grégoire benoitg@coeus.ca